Flask



FIG. 1 is a perspective view of a first embodiment of a flask showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof; and

FIG. 7 is a bottom plan view thereof.

FIG. 8 is a perspective view of a second embodiment of a flask showing our new design;

FIG. 9 is a front elevation view thereof;

FIG. 10 is a rear elevation view thereof;

FIG. 11 is a left side elevation view thereof;

FIG. 12 is a right side elevation view thereof;

FIG. 13 is a top plan view thereof; and,

FIG. 14 is a bottom plan view thereof.

The evenly-dashed broken lines in the drawings illustrate the portions of the flask that form no part of the claimed design. The dot-dash broken lines in FIGS. 7 & 14 define the bounds of the claim and form no part thereof. 

CLAIM We claim the ornamental design for a flask, as shown and described. 